.left{
    float: left;
}
.right{
    float: right;
}
.center{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}
.button{
    min-width: 80px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    outline: none;
    padding: 0;
    margin: 0;
    border: 1px solid #0066f0;
    border-radius: 4px;
    background: #0066f0;
    color: #ffffff;
}
.button:hover{
    background: #0066f0e0;
}